关于tarnishing的百科

• tarnishing造句怎么写

• Ahardbrittlebluewhitemultivalentmetallicelementandtarnishing.Youcanusechemistrytoreversethetarnishingreaction,andmakethesilvershinyagain!ahardbrittleblue-whitemultivalentmetallicelement;resistanttocorrosionandtarnishing.Partly,theauthorargues,itisaco...
• 2017-03-2627001